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Force

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Physics - What is Force? - Part 1

4:42

Physics - What is Force?

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Free Body Diagrams Physics Mechanics Problems, Tension, Friction, Inclined Planes, Net Force

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Newton's First Law of Motion - Second & Third - Physics Practice Problems & Examples

2:47:20

Static & Kinetic Friction, Tension, Normal Force, Inclined Plane & Pulley System Problems - Physics

In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. It is measured in the SI unit of newtons and represented by the symbol F.